Table 2.
Search results by academic database.
| Records for initial search | Records for follow‐up search | |
|---|---|---|
| Database | ||
| EBSCO Academic Search Complete (1887–current) | 11 | 12 |
| EBSCO Education Full‐Text [Education Research Complete] (1881–current) | 85 | 7 |
| EBSCO PsycINFO (1887–current) | 103 | 21 |
| EBSCO Professional Development Collection (1940–current) | 33 | 10 |
| EBSCO SocINDEX with Full Text (1881–current) | 18 | 5 |
| EBSCO Sociological Collection (1947–current) | 5 | 0 |
| EBSCO Teacher Reference Center (1984–present) | 21 | 3 |
| ERIC [EBSCO and web] (1966–current) | 242 | 97 |
| JSTOR (1800s–current) | 46 | 4 |
| ProQuest Education Journals [ProQuest Education Database] (1991–current) | 65 | 97 |
| ProQuest Dissertations & Theses (1637–current) | 52 | 20 |
| ProQuest Research Library (1971–current) | 75 | 89 |
| ProQuest Social Sciences Journals [Social Science Database] (1994–current) | 247 | 217 |
| Web of Science Arts & Humanities Citation Index (1975–current) | 158 | 61 |
| Web of Science Social Sciences Citation Index (1900–current) | 27 | 33 |
| Grey literature source | ||
| AERA Online Paper Repository (2010‐current) https://www.aera.net/Publications/Online-Paper-Repository/AERA-Online-Paper-Repository | 16 | 40 |
| American Montessori Society Montessori Research Library (coverage undetermined) https://amshq.org/Research/Research-Library | 8 | 12 |
| Open Grey [discontinued] (1980‐2020) http://www.opengrey.eu/ | 10 | 0 |
| Internet searches | ||
| Google Scholar (coverage undetermined) https://scholar.google.com | *titles and abstracts of first 500 results were examined before relevancy dropped off significantly | |
| Google (coverage undetermined) https://www.google.com | *titles and abstracts of first 500 results were examined before relevancy dropped off significantly | |
| Bing (coverage undetermined) https://www.bing.com | *titles and abstracts of first 500 results were examined before relevancy dropped off significantly | |